1 /*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "huks_napi_abort.h"
17
18 #include "securec.h"
19
20 #include "hks_api.h"
21 #include "hks_log.h"
22 #include "hks_mem.h"
23 #include "hks_param.h"
24 #include "hks_type.h"
25 #include "huks_napi_common.h"
26
27 namespace HuksNapi {
28 namespace {
29 constexpr int HUKS_NAPI_ABORT_MIN_ARGS = 2;
30 constexpr int HUKS_NAPI_ABORT_MAX_ARGS = 3;
31 } // namespace
32
33 struct AbortAsyncContextT {
34 napi_async_work asyncWork = nullptr;
35 napi_deferred deferred = nullptr;
36 napi_ref callback = nullptr;
37
38 int32_t result = 0;
39 struct HksBlob *handle = nullptr;
40 struct HksParamSet *paramSet = nullptr;
41 };
42 using AbortAsyncContext = AbortAsyncContextT *;
43
CreateAbortAsyncContext()44 static AbortAsyncContext CreateAbortAsyncContext()
45 {
46 AbortAsyncContext context = (AbortAsyncContext)HksMalloc(sizeof(AbortAsyncContextT));
47 if (context != nullptr) {
48 (void)memset_s(context, sizeof(AbortAsyncContextT), 0, sizeof(AbortAsyncContextT));
49 }
50 return context;
51 }
52
DeleteAbortAsyncContext(napi_env env,AbortAsyncContext & context)53 static void DeleteAbortAsyncContext(napi_env env, AbortAsyncContext &context)
54 {
55 if (context == nullptr) {
56 return;
57 }
58 DeleteCommonAsyncContext(env, context->asyncWork, context->callback, context->handle, context->paramSet);
59 HksFree(context);
60 context = nullptr;
61 }
62
ParseAbortParams(napi_env env,napi_callback_info info,AbortAsyncContext context)63 static napi_value ParseAbortParams(napi_env env, napi_callback_info info, AbortAsyncContext context)
64 {
65 size_t argc = HUKS_NAPI_ABORT_MAX_ARGS;
66 napi_value argv[HUKS_NAPI_ABORT_MAX_ARGS] = { 0 };
67 NAPI_CALL(env, napi_get_cb_info(env, info, &argc, argv, nullptr, nullptr));
68
69 if (argc < HUKS_NAPI_ABORT_MIN_ARGS) {
70 napi_throw_error(env, nullptr, "invalid arguments");
71 HKS_LOG_E("no enough params");
72 return nullptr;
73 }
74
75 size_t index = 0;
76 napi_value result = ParseHandleAndHksParamSet(env, argv, index, context->handle, context->paramSet);
77 if (result == nullptr) {
78 HKS_LOG_E("abort parse failed");
79 return nullptr;
80 }
81
82 index++;
83 if (index < argc) {
84 context->callback = GetCallback(env, argv[index]);
85 }
86
87 return GetInt32(env, 0);
88 }
89
AbortWriteResult(napi_env env,AbortAsyncContext context)90 static napi_value AbortWriteResult(napi_env env, AbortAsyncContext context)
91 {
92 return GenerateHksResult(env, context->result, nullptr, 0);
93 }
94
AbortAsyncWork(napi_env env,AbortAsyncContext context)95 static napi_value AbortAsyncWork(napi_env env, AbortAsyncContext context)
96 {
97 napi_value promise = nullptr;
98 if (context->callback == nullptr) {
99 NAPI_CALL(env, napi_create_promise(env, &context->deferred, &promise));
100 }
101
102 napi_value resourceName;
103 napi_create_string_latin1(env, "AbortAsyncWork", NAPI_AUTO_LENGTH, &resourceName);
104
105 napi_create_async_work(
106 env,
107 nullptr,
108 resourceName,
109 [](napi_env env, void *data) {
110 AbortAsyncContext napiContext = static_cast<AbortAsyncContext>(data);
111 napiContext->result = HksAbort(napiContext->handle, napiContext->paramSet);
112 },
113 [](napi_env env, napi_status status, void *data) {
114 AbortAsyncContext napiContext = static_cast<AbortAsyncContext>(data);
115 napi_value result = AbortWriteResult(env, napiContext);
116 if (napiContext->callback == nullptr) {
117 napi_resolve_deferred(env, napiContext->deferred, result);
118 } else if (result != nullptr) {
119 CallAsyncCallback(env, napiContext->callback, napiContext->result, result);
120 }
121 DeleteAbortAsyncContext(env, napiContext);
122 },
123 static_cast<void *>(context),
124 &context->asyncWork);
125
126 napi_status status = napi_queue_async_work(env, context->asyncWork);
127 if (status != napi_ok) {
128 GET_AND_THROW_LAST_ERROR((env));
129 DeleteAbortAsyncContext(env, context);
130 HKS_LOG_E("could not queue async work");
131 return nullptr;
132 }
133
134 if (context->callback == nullptr) {
135 return promise;
136 } else {
137 return GetNull(env);
138 }
139 }
140
HuksNapiAbort(napi_env env,napi_callback_info info)141 napi_value HuksNapiAbort(napi_env env, napi_callback_info info)
142 {
143 AbortAsyncContext context = CreateAbortAsyncContext();
144 if (context == nullptr) {
145 HKS_LOG_E("could not create context");
146 return nullptr;
147 }
148
149 napi_value result = ParseAbortParams(env, info, context);
150 if (result == nullptr) {
151 HKS_LOG_E("could not parse params");
152 DeleteAbortAsyncContext(env, context);
153 return nullptr;
154 }
155
156 result = AbortAsyncWork(env, context);
157 if (result == nullptr) {
158 HKS_LOG_E("could not start async work");
159 DeleteAbortAsyncContext(env, context);
160 return nullptr;
161 }
162 return result;
163 }
164 } // namespace HuksNapi
165